Process for the manufacture of articles of agglomerated and reinforced cork.



rarnrr CHARLES AUGUSTE JANNEAU, OF PARIS, FRANCE, ASSIGNOB T0 SOGIE TE ANC'NYIVIE DES ANCIENS ETABLISSEMENTS CHARLES JANNEAU, OE

PAR-IS, FRANCE.

PROCESS FOR THE MANUFACTURE 03? ARTICLES OF AGGLOMEBATED AND REINFORCED CORK.

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N0 Drawing.

Specification of Letters Patent.

Application filed April 25, 1911.

To all whom it may concern:

Be it known that 1, CHARLES AUoUsTn JAIZNEAU, of 73 Rue Pigalle, in the city of Paris, Republic of France, engineer, have invented a Process for the Manufacture of Articles of agglomerated and Reinforced fork, of which the following is a full, clear, and exact description.

It has already been proposed to provide gglomerated cork with appropriate reinorcements, but the processes heretofore knmvn to the art have not accomplished complete adhesion between the reinforcement and the cork, so that the products obtained were, for this reason, very imperfect.

The present invention has for its object a process of manufacture by means of which an absolute adhesion between the reinforcemcnt an d the mass of agglomerated cork can be obtained.

This process essentially consists in applying on the entire surface of the reinforcement a coatin composed of pitch, resin and heavy oil in determined proportions. The heavy oil used is obtained by distillation of coal. The reinforcement thus coated is then embedded inthe mass of ground cork kneaded while hot with a melted mixture of pitch, resin and heavy oil, so that the coating of the reinforcement, melting slightly itself, becomes intimately combined with the agglomeration-agent of the cork. In this way a perfect adhesion between the reinforcement and the agglomerated cork is obtained.

The following proportions by weight of the products forming the composition of the coating give the best result:

Titch 5/8 aesin 2/8 Heavy oil 1/8 The coating thus composed is applied while cold on to the metal reinforcement the shape and composition of which may vary, but which is always placed so as to give the product the greatest possible solidity. On the other hand, the cork, broken up in particles of variable size, according to the kind of product to be obtained, is kneaded while hot with the composition of pitch, resin and heavy oil indicated above, but previously melted and to which a fire-proofing agent may be added. The mass is worked up until the particles of cork are quite covered with the composition. The mass thus obtained is cast in a mold, of an appropriate shape, in which the reinforcement provided with its coating is placed. This mass is then compressed in the mold, either manually or by means of a hydraulic press, the degree of compression varying according to the product to be obtained. After a sufficient cooling and solidification, the worked piece is taken out of the mold and immersed in any fireprooting agent in solution (phosphoric acid, bicarbonate of soda, etc). After this fireproofing agent has been dried, the worked piece is ready for use. During the molding and compression of the mass of cork, this mass causes, by reason of its temperature, a partial melting of the coating covering up the reinforcement, so that said coating be comes incorporated with the agglomerationagent of the cork, thus assuring the adhesion of the metal of the reinforcement with the cork. Thus are obtained diverse product-s perfectly suitable for the use to which they are intended.

At the moment of the casting, tow or any other fibrous product may be added to the plastic mass, thus assuring the cohesion of the different parts of the product. In case of need, saw-dust could also be added to the crushed cork.

Claims:

1. The herein described process of manufacturing articles of agglomerated and reinforced cork which consists in coating the reinforcement with a mixture of pitch, resin and heavy oil, embedding the coated reinforcement in a mass of cork particles agglomerated with a heated mixture of pitch, resin and heavy oil, subjecting the mass to pressure and then allowing the compressed mass to cool.

2. The herein described process of manufacturing articles of agglomerated and reinforced cork which consists in coating the reinforcement with a mixture of pitch, resin and heavy oil in the proportions by weight, of 5/8, 2/8 and 1/8, embedding the coated reinforcement in a mass of cork particles agglomemijcd with a heated mixture of pitch and reinforced cOll signed by me this 12th resin and heavy oil in the same noporticns, day of April, 1911. sub c itins: the mass to DK'QSSUIQ and then T Y niio wi ng i hc compressed iimss to 0001. CHARLES AUGUSTE MNNEAB' The foregoing specification of my process for the nmnufacture of puggins, bricks, pming-tilcs, slabs and the like, in agglcnierated fi'itncsscs H. C. Com R. 611111101.

each, by addressing the Commissioner of Patents, 011, D. C.

flopies of this paaem. may be obtained for five cent Washing 

